Cheapest return flights from Helsinki to Boston in December from $441

AirHint found the following cheapest return flights from Helsinki (HEL) to Boston (BOS) in December 2025 (see full year).

Return flights

11 Dec - 21 Jan Finnair
10 Dec - 15 Dec Icelandair
25 Dec - 31 Dec Air France
27 Dec - 07 Jan KLM
11 Dec - 18 Dec Icelandair
02 Dec - 09 Dec Scandinavian Airlines
05 Dec - 12 Dec Scandinavian Airlines
07 Dec - 14 Dec Scandinavian Airlines
08 Dec - 15 Dec Scandinavian Airlines
01 Dec - 08 Dec Scandinavian Airlines
10 Dec - 16 Dec Finnair
22 Dec - 29 Dec airBaltic
29 Dec - 05 Jan Scandinavian Airlines
26 Dec - 02 Jan Scandinavian Airlines
27 Dec - 03 Jan Scandinavian Airlines
28 Dec - 04 Jan Scandinavian Airlines

Also check the deals for one-way flights from Helsinki to Boston in December.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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